Bueglae peoof safe



(No Model.) 2 Sheets-Sheet 1 P. F. KING BURGLAR PROOF SAFE. No. 457,122.Patented Aug. 4, 1891.

I I I Witnesses: Inven or am/14W. S at 5 Attorn:

[No Model.) 2 Sheets-Shet 2;

P. P. KING.

BURGLAR PROOF SAFE. No. 457,122. Patented Aug. 4, 1891.

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YRS wJ/MM w Attorney and deserted at four or five oclock.

UNITED STATES PATENT OFFICE.

PHINEAS F. KING, OF CINCINNATI, OHIO, ASSIGNOR TO THE MOSLER BANK SAFECOMPANY, OF SAME PLACE.

BURGLAR-PROOF SAFE.

SPECIFICATION forming part of Letters Patent No. 457,122, dated August4, 1891.

Application filed February 4, 1891.

To al whom it may concern.-

Be it known that I, PHINEAS F. KING, of Cincinnati, Hamilton county,Ohio, have inventedcertain new and useful Improvements in Burglar-ProofSafes, of which the following is a specification.

Some features of my present improvements in burglar-proof safes areapplicable to such safes generally; but the invention has been devisedwith special reference to that class of burglar-proof safes in which thedoor 1s circular and held in closed position by an interior screw, suchsafes being commonly known as screw-door safes. When such a door isscrewed home, and when a time-lock inside the safe locks the dooragainst being unscrewed, the result is an air-tight safehaving noexternal communication with its interior look; but in such safes, whilethe interior time-lock, completelyinsulated from externalcommunication,is depended upon to furnish the lock security when thesafe is under full guard, it is often desirable to provide fortemporarily locking the safe. Such temporary locking need not beespecially burglarproof, as its main intent on 1s to guard againstunauthorized meddlingas, for instance, when a banksafe is temporarilyclosed during business hours. Such temporarylocking will be referred toas the day-locking, as distinguished from the full guard which is givenby the action of the time-lock at night. Again, in the use of time-locks1t 1 s quite usual to so set them that they W111 go into action at agiven hour in the evening-say six oclockand it may be that the safe isclosed In such case the day-locking is depended upon to guard the safetill the hour of duty of the time-lock arrives. The day-lockingmechanism should have three conditions, namely: first, that of completeunlocking; second, that of complete locking so far as the day-lock isconcerned, but of such nature that the timelock cannot go into actionand accidentally make day-locking too permanent, and, third, completelocking of such nature that the time-lock can perform its full duty when1ts hour of duty arrives. I

My present improvements will be readily understood from the followingdescription, taken in connection with the accompanying drawings, inwhich- Serial No. 380,205. on model.)

Figure 1 is a perspective view of a safe exemplifying my improvements;Fig.2, a horizontal section through the front wall and door of the safein a plane cutting the center of the circular door; Fig. 3, a frontview, the hinged plate or door which carries the daylock being entirelyremoved, vertical sections appearing at a portion of the rim of thegearcase and at the arm-journals of the crane, the cover-plate beingalso omitted from the upper hinge-block; and Fig. 4 a view of the backof the plate or door which carries the day-lock.

In the drawings, A indicates the front of the safe; B, the side walls;C, the circular door, provided with peripheral steps and fitting intothe circular stepped jamb of the safe front; D, the usual screw firmlysecured to and forminga part of the door; E, the usual nut, fitting thisscrew and secured to and forming a part of the front wall of the safe;F, a spur-gear rigidly secured to the outer face of the circular door;G, a large hollow journal projecting outwardly at the center of the.spur-gear and door; H, the cavity or hollow of this journal open at thefront; J, a

disk-like case inclosing the spur-gear and completely covering it, theopen back of this case coming near the front face of the door; K, abearing projecting inwardly from the front of the case and engaging thecentral journal G of the spur-gear; L, a pinion-bearing mounted upon orformed at the periphery of the case; M, a pinion-spindle journaled inthis bearing and adapted to be turned by some suitable implement,preferably a removable plug wrench or crank; N, a pinion on the innerend of this spindle engaging the spur-gear; O, a hinge-block, securedoneat the upper and one at the lower corner of the safe at one side of thedoor, these blocks projecting outwardly from the safe to furnishbearings for a crane-hinge; P, an integrally formed bifurcated crane,pivoted to the hingeblocks and having its arms extending freely aroundthe periphery of the case to points thereon above and below the centerof the case; Q, a bearing formed at the extremity of the upper arm ofthe crane; R, a similar bearing on the lower arm; S, a trunnion securedin and projecting upward from the case and journaled in the bearing Qand projecting through that bearing; T, lockarc of which the crane isthe radius.

nuts on the trunnion S, over the bearing Q; U, a trunnion projectingfrom the case downwardly into bearing R; V, a set-screw screwed upwardin bearing R and forming a step for the lower trunnion; W, boltssecuring the hinge-blocks O to the front of the safe, these bolts havingpreferably their heads let into counterbores in the faces of the blocksand having their bodies fitting loosely through their holes in theblocks, whereby the blocks would be capable of a slight amount ofmovement transversely to the bolts; X, dowel-pins engaging thehinge-blocks and safe front and securing the blocks against anytransverse shifting on the safe front; Y, mask-plates secured againstthe outer faces of the hingeblocks and covering'the bolts W; Z, a flangebolted against the outer end of the journal G of the spur-gear, theouter projection of this flange engaging the front end faces of thecase-bearing in which the journal is mounted, this case-bearing having afrontal counterbore or recess to receive the flange; a, a couple ofmortises in the Wall of the bore of the hollow journal of the spur-gear;b, a plate or door at and closing the front of this central recess orcounterbore in the case, this door being hereinafter termed the day-lockplate; 0, a combination-lock mounted on the back of the day-lock plate,the bolt of this lock being adapted to engage either of the two mortisesa; d, the knob of this combination-lock, disposed at the center of theouter face of the day-lock plate; 6, a circular bead margining thefacial recess or counterbore in the case around the day-lock plate, andhaving at opposite sides gaps to receive intermembering portions formedupon the day-lock plate; f, one of these intermembering portions of thebead formed upon the day-lock plate and engaging one of the gaps in thebead and pivoted therein on a hinge-pin; g, a similar bead portion onthe day-lock plate to fill the other gap in the bead, and h a small lockon the day-lock plate to serve in locking it in closed position.

It is to be understood that the engagement of the circular door with thesafe-front and its mode of operation and its mode of securing by thetime-lock will be as usual, and it will be presumed that the reader ofthis specification is familiar with the ordinary construction ofscrew-door safes, and that the present description may therefore in itsparticularity be limited to novel points.

If pinion N be turned, the spur-gear and the door will be rotated andWill unscrew and come out from the opening in the safe front. Duringthis operation the door is supported by the central bearing K in thecase, and the case is supported by the crane. As the door starts to moveoutwardly its movement is an The parts are so proportioned and arrangedthat when the door is home this radius is at right angles to the axis ofthe door, or, in other words, that the axis of the door is tangent tothe crane are. As the door starts to open, its axis tends to move towardthe fixed axis of the crane a distance equal to the versed sine of thearc movement; but the disposition just mentioned is such that the versedsine corresponding to the first increment of door motion is ofinfinitely small value. As the door first leaves its seating, then thevalue of the versed sine of the arc of movement becomes greater; but,owing to the tapering of the door-steps, the door then has capacity fora sufficient amount of transverse motion to compensate for the versedsine of ,the are; but it is highly important that the disposition of themain hinge-pivots of the crane should be exactly right. This is securedby means of the adjustable hinge-blocks. The door being seated home,with the bolts W not screwed up tight, the blocks may be adjusted toexactly the right position and then the bolts screwed firmly home. Testsof doormovement may then be made and the blocks readjusted, if required.Then the dowel-holes for the pins X are drilled and the pins are put inplace, and thereafter it may be insured that the main hinge of the craneis properly located. The shifting of the hingeblocks also permits themto be adjusted vertically to properly clamp the crane between them. Themask-plates Y cover the blockbolts. The adjustment of the hinge-blocksprovides for the sidewise adjustment of the axis of the door, and thisadjustment is not liable to future disturbance by wear; but the doormust also be vertically adjusted with great accuracy to correspond withthe door-opening, and this adjustment is liable to disturbance by wear.Therefore means must be provided for raising the door, the tendency ofthe wear being downward. This adjustment is made by means of theset-screw V, which raises the case, and consequently the door in thecrane. It is desirable that the Weight of the heavy door be equallyborne by both arms of the crane. Therefore, instead of carrying the loadentirely on the set-screw V, the lock-nuts T may be adjusted to bringthe trunnion S under tension and impose a share of the load on'the upperarm of the crane.

The case J completely incloses the spurgear and pinion, and the casewould have no other offices than those described were it not for thefact that some provision for temporary lockingis desired. Day-lock plateb may be looked upon as a rigidly-supported portion of the front of thecase. Therefore as the spur-gear and door rotate the combination-lock cis stationary. The bolt of the combination-lock may be thrown intoeither of the mortises a. One of these mortises is in such position thatthe bolt of the combination-lock will enter it only when the door isscrewed completely home and ready to come under the control of thetime-lock inside the safe. The other mortise is earlier in time,

corresponding to the position of the door when it is not screwed socompletely home as to come under the control of the time-lock. When thebolt of the combinationdock is thrown into either of these mortises, itprevents the rotation of the door and therefore locks the door with asmuch security as is consistent with a lock exterior to the safe. Iftemporary day-lockingis desired, not wishing the time-lock to enter uponits duty, the door is screwed up and the bolt 0f the combination-lock isthrown into the earlier mortise. The door may then at any time beunscrewed by retracting the bolt of the combination-lock; but if I wishto put the door under the control of the time-lock I screw it completelyhome and throw the bolt of the combination-lock into the later mortise.If the hour of duty of the time-lock is already at hand the time-lockwill go on duty and the door cannot be again opened till the timelockgoes ofi duty. If the duty-hour of the time-lock has not arrived thetime-lock will go on duty when the hour does arrive, the door in themeantime being under the guard of the combination-lock.

The removability or opening of the daylock plate permits proper accessto the combination-lock for the purpose of changingits combination. Theday-lock plate may be swung open and the desired changes made. The smalllock h guards against unauthorized meddling when the combination-lock isoff duty, and when the combination-lock is on duty then the day-lockplate is held to place by the combination-lock as well as by the smalllock. As the combination-lock is an agent to resist the rotation of thedoor it follows that its supporting-plate must be firmly attached to thecase. The .bead portions f and g, closely fitting the gaps in the beadof the case, give to the clay-lock plate a firm support against rotationwithout imposing strains on the small lock or on the hingepin whichunites the day-lock plate to the case.

I claim as my invention 1. In a safe, the combination, substantiallyasset forth, of a circular door provided with a journal, a bearing forsaid journal, abifurcated crane connected with said bearings bytrunnions, and two independent hinge-blocks secured to the safe-body andindependently adjustable thereon and engaged by said crane.

2. In a safe, the combination, substantially as set forth, of a circulardoor provided with a journal, a bearing for said journal, anintegrally-formed crane-plate hinged to the safe and presenting avertical trunnion-bearing above and one below said journal, a trunnionconnected with said j ournal-bearing and projecting up through andbeyond the upper trunnion-bearing of the crane and having asuspension-nut over said trunnion-bearing, a trunnion connected withsaid journal-bearing and projecting downwardly part way into the lowertrunnion-bearing of the crane, and an adjustable step-screw projectingupward into said lower trunnion-bearing.

In a safe, the combination, substantially as set forth, of a circulardoor, a journal on the door, a disk-like case in front of and coveringthe door and having a bearing for said journal, and a crane hinged tothe safe and trunnioned to said case.

4. In a safe, the combination, substantially as set forth, of a circulardoor, a gear and journalon the door, a disk-like case in front of andcovering the gear and having a bearing for said journal and having alsoa pinionbearing, a pinion journaled at said pinionbearing, and a cranehinged to the safe and trunnioned to said case.

5. In a safe, the combination, substantially as set forth, of a circulardoor, a crane hinged to the safe and supporting said door free forrotation, and a lock supported against rotation by the crane andarranged to look the door against rotation in the crane.

6. In a safe, the combination, substantially as set forth, of a circulardoor having a hollow journal, a crane hinged to the safe and supportingthe door free for rotation on said journal, a plate supported againstrotation by the crane and closing the front of said hollow journal, anda lock mounted on the back of said plate within the hollow journal andarranged to lock said journal against rotation.

'7. In a safe, the combination,substantially as set forth, ofacircular-door having a journal, a bearing for said journal, a cranehinged to the safe and supporting said bearing, a non-rotary platesecured to the front of said bearing and arranged to open therefrom toexpose the back of the plate, and a lock mounted on the back of theplate and arrangedto lo ck the journal against rotation in the bearing.

8. In a safe, the combination, substantially as set forth,of a circulardoor having a journal, a bearing for said journal provided at its frontend with an annular bead having two gaps, a plate closing the front endof said bearing and having bead portions to fill said gaps, a lockmounted on theback of said plate and arranged to lock said journalagainst rotation in said bearing, and a crane hinged to the safe andsupporting said bearing.

9. In a safe, the combination, substantially as set forth,of a circulardoor having a journal provided witha mortise, a bearing for saidjournal, a crane supporting said bearing, a non-rotary plate at thefront end of said bearing, and a lock mounted on said plate and arrangedto look into said mortise to pre vent rotation of the journal in orseparation of the plate from the bearing.

PHINEAS F. KING. \Vitnesses:

Mosns MOSLER, AARON JAooBs.

